Fantastic behaviour management tool. Great success rate.
Print and laminate for each child.
Discuss targets and possible rewards with the child (5 minutes buddy time to play a board game, iPad time, time outside, football)
Write in whiteboard pen (so they can be changed when needed!).
Initial each star as and when they achieve a target.
You could either get the child to tick off all 25 stars to achieve their reward. Alternatively offer a reward for each ‘row’ of stars and then a bigger reward for the entire chart.